Price gap between grey hydrogen and low-carbon H2 will still be 'significant' in 2050, warns US government advisors

National Petroleum Council calls for game-changing hydrogen tax credit to be extended to 20 years

Energy Secretary Jennifer Granholm speaking at the White House last year.
Energy Secretary Jennifer Granholm speaking at the White House last year.Photo: AFP/Getty

Official advisors to the US government have warned that under current policies, the price gap between polluting hydrogen and low-carbon equivalents in key sectors such as industry and transport is set to be “significant”, even in 2050.

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The National Petroleum Council (NPC) — an official industry advisory body to the Department of Energy (DOE) populated by oil majors including Chevron, BP and ExxonMobil, as well as non-fossil-fuel organisations such as the Environmental Defense Fund — also recommends in a new report that Joe Biden’s pioneering 45V hydrogen production tax credit is extended by a decade to 20 years, so as to incentivise the necessary investment to make low-carbon hydrogen affordable.

The report, Harnessing Hydrogen: A Key Element of the U.S. Energy Future, was requested by US Energy Secretary Jennifer Granholm in November 2021, shortly after the Biden administration came to power.
Sent by the NPC to Granholm yesterday (Tuesday), it includes analysis showing that by mid-century it would still be around $1.50-2/kg more expensive to use green hydrogen in refining operations along the Gulf Coast compared to grey H2 made with unabated fossil gas, and around $0.50/kg more expensive to use blue hydrogen made with gas and carbon capture and storage (CCS).
And in the transport sector, the gap would be even more stark in 2050, with the cost of using grey H2 in heavy transport sitting at around $1.50-$4/kg, compared to around $6/kg for blue hydrogen and $8/kg for green.

The NPC tells Granholm that low-carbon hydrogen could ultimately achieve 8% of the US's emissions reductions, but that this would require scaling up the industry sevenfold by 2050. Current policies would achieve a scale-up of just twofold, it warned.

The effective deployment of low-carbon hydrogen in hard-to-abate sectors in certain areas of the US (for example, in refining and in exports on the Gulf Coast) had the potential to limit the overall national cost of reaching net zero by 2050 to 3% of GDP, it adds.

Failing to deploy low-carbon hydrogen where it is needed would add an additional 0.5-1% to that, the group says.

The US government should take action now to ensure the price gap is closed, by putting in place long-term incentives for both demand and supply, the NPC writes.

The extension of the 45V production tax credit to 20 years — just one measure proposed by the NPC in its vast report — would incentivise investment in low-carbon hydrogen production by aligning the subsidy more accurately with the 20-year investment lifecycle of infrastructure assets, the group says.

It also recommends a blurring of the emissions intensity bands (see panel) that govern which projects are eligible for the tax credit, so as to prevent a “cliff effect” — in which a facility with lower emissions than other projects in the same band is not rewarded for being more climate friendly, even if those reduced emissions mean its H2 is more expensive.
“The cliff effect or even concerns over the cliff effect, which arises due to the steep step changes in 45V between the different carbon intensity tiers, may negatively affect the bankability of a [low carbon] H2 project,” the report says.
Under current rules, blue hydrogen projects are unlikely to meet the minimum emissions intensity threshold to qualify for the tax credit, according to DOE analysis late last year.
On the demand side, the number-one priority for Congress should be implementing a national carbon price, phased in in stages, with an EU-style carbon border tax implemented on qualifying imports, says the report — in a “policy” chapter led by NPC member and oil giant BP, which has long advocated for an international carbon pricing mechanism.
“The United States does not have a federal policy in place that establishes an explicit price for greenhouse gas emissions,” the report explains. “Such a policy would be instrumental in meeting the US long-term national decarbonisation goals, including supporting the growth of a LCI [low-carbon-intensity] H2 industry.

“A long-term, effective, durable, and transparent price on carbon could phase in as shorter-term low-carbon energy funding and tax incentives are phased out to enable a smoother and more efficient market transition. Explicit carbon pricing in the form of a carbon tax or a GHG [greenhouse gas] cap-and-trade program provide the most economically efficient climate policy.”

The carbon price mechanism, which could take the form of an emissions tax or a cap-and-trade-scheme should be phased in with the goal of eventually replacing the need for 45V tax credits, the NPC said.

However, carbon prices of $100-200 per tonne tonne would be needed to create the required incentives to close the price gap between grey and low-carbon hydrogen, a level that could present an insurmountable political hurdle, the authors admit.

“Given that such a carbon price may be politically challenging in the US any time in the foreseeable future, other demand-driving policy options should be considered,” the NPA says.

The DOE should also consider introducing emissions intensity standards for industrial and transport sectors — although it also recommends funding incentive schemes for these sectors via the proceeds from a carbon pricing mechanism.

Specifically, Congress and the Biden administration should implement a national, technology-neutral low-carbon well-to-wake intensity standard applied to industrial users of hydrogen, the NPC said, which may require sub-targets for various different sectors such as steel production, chemicals or refining.

For the transport sector, the NPC recommends that a similar standard applies on a well-to-wheel basis across the entire transport sector. This would entail a low-carbon fuels standard programme to drive down the carbon intensity of different drivetrain pathways such as liquid fuels, electricity and hydrogen.

In addition, it recommends well-to-wheel emissions standards to improve the carbon intensity of individual vehicle models.

However, both schemes should assess lifecycle emissions using the currently-proposed GREET model, which environmental groups such as Friends of the Earth have warned massively underestimates the impact of methane emissions.

In addition, the NPC gave no guidance on how any incentive schemes should be funded without the aid of a federal carbon credits market.

The NPC's role as an official industrial advisor to the US government is laid out in statute. Privately funded by its members, it counts both oil majors and smaller regional oil & gas producers among its base, as well as academics, researchers and non-governmental organisations.

The NPC was at pains to characterise the report as balanced, pointing out that 67% of the report’s participants were from the non-oil & gas segments of its membership. However, most major workgroups in the report (behind the individual chapters of the document) were led by oil & gas majors including Chevron, BP and ExxonMobil.

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Published 24 April 2024, 14:23Updated 24 April 2024, 14:29